Answered: 1. A six poles three-phase…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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1. A six poles three-phase squirrel-cage induction motor, connected to a 50 Hz three-phase
feeder, possesses a rated speed of 975 revolution per minute, a rated power of 90 kW, and
a rated efficiency of 91%. The motor mechanical loss at the rated speed is 0.5% of the
rated power, and the motor can operate in star at 230 V and in delta at 380V. If the rated
power factor is 0.89 and the stator winding per phase is 0.036 Ω
a. Determine the power active power absorbed from the feeder
b. Determine the reactive power absorbed from the line
c. Determine the current absorbed at the stator if the windings are connected in star

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